Association Between STAT4 rs7574865 Polymorphism and Rheumatoid Arthritis: Debate Unresolved
Iman Tarakji1, *, Wafa Habbal2, Fawza Monem1, 2
Identifiers and Pagination:Year: 2018
First Page: 172
Last Page: 178
Publisher Id: TORJ-12-172
Article History:Received Date: 31/5/2018
Revision Received Date: 28/8/2018
Acceptance Date: 01/10/2018
Electronic publication date: 24/10/2018
Collection year: 2018
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
STAT4 rs7574865 polymorphism has been evidently associated with susceptibility to Rheumatoid Arthritis (RA) in European and Eastern Asian populations, whereas studies in other countries reported otherwise.
We investigated the distribution of STAT4 rs7574865 polymorphism in a group of Syrian RA patients.
Eighty-one RA patients and forty healthy controls were enrolled and STAT4 rs7574865 was genotyped by direct sequencing. RA patients were stratified according to Anti-Citrullinated Protein Antibodies (ACPA) status for analysis.
Minor T allele frequencies were 30.4%, 16.7%, and 23.8% in ACPA-positive RA patients, ACPA-negative RA patients, and healthy controls, respectively. No significant differences in STAT4 rs7574865 allele/genotype frequencies were found between ACPA-positive RA patients, ACPA-negative RA patients, and healthy controls (P>0.05).
STAT4 rs7574865 TT genotype showed a potential impact on ACPA positivity in Syrian RA patients. However, STAT4 rs7574865 effect on RA onset and severity is minor compared to other genetic factors such as HLA-DRB1 shared epitope alleles.